College Open Textbooks

The College Open Textbooks Collaborative is funded by The William and Flora Hewlett Foundation. This collection of sixteen educational non-profit and for-profit organizations, affiliated with more than 200 colleges, is focused on driving awareness and adoptions of open textbooks to more than 2000 community and other two-year colleges.

This includes providing training for instructors adopting open resources, peer reviews of open textbooks, and mentoring online professional networks that support for authors opening their resources, and other services. 

In addition, here is a good resource for open texbooks. 

1,000+ Open Textbooks and Learning Resources for All Subjects

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College Open Textbooks